Harry and David. [Letter from Harry and David to Isaac H. Kempner, July 26, 1963], letter, July 26, 1963; (https://texashistory.unt.edu/ark:/67531/metapth1514097/m1/1/: accessed July 16, 2024), University of North Texas Libraries, The Portal to Texas History, texashistory.unt.edu; .